Sheetali

Sit comfortably in any meditative posture. Sit erect. Keep both palms on the knees in Gyan Mudra. Draw out the tongue. Roll it up from the sides to form a tube like opening. Slowly suck the air through it and fill the lungs completely. After full inhalation withdraw the tongue and close the mouth. Hold the breath for sometime and then slowly exhale through the nose. Repeat required number of times.